1135309772221 has 4 divisors (see below), whose sum is σ = 1145920144032. Its totient is φ = 1124699400412.

The previous prime is 1135309772183. The next prime is 1135309772237. The reversal of 1135309772221 is 1222779035311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1135309772221 - 2²⁹ = 1134772901309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1135309772251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5305185745 + ... + 5305185958.

It is an arithmetic number, because the mean of its divisors is an integer number (286480036008).

Almost surely, 2^{1135309772221} is an apocalyptic number.

It is an amenable number.

1135309772221 is a deficient number, since it is larger than the sum of its proper divisors (10610371811).

1135309772221 is a wasteful number, since it uses less digits than its factorization.

1135309772221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10610371810.

The product of its (nonzero) digits is 158760, while the sum is 43.

The spelling of 1135309772221 in words is "one trillion, one hundred thirty-five billion, three hundred nine million, seven hundred seventy-two thousand, two hundred twenty-one".